During the events of the Avengers, Letitia and her boyfriend Luke attend a nice dinner; however, their plans to attend the unveiling at the Museum of Natural History are ruined when a certain mischief-maker appears. One thing stands out above all the confusion, though: the stranger who claims to be a god is Luke's doppleganger. Loki's world is about to be turned upside down.

Gabriel was always a mischievous angel, constantly causing trouble for his siblings. Ever since meeting the Winchesters, he's eagerly messed with them in various ways. Finally, he pulls the ultimate prank, using Castiel as his victim. Castiel is turned into what appears to be a human child, and Dean and Sam are left to clean up the mess.